Interactive pen



FIG. 1 is a top, front, left-side perspective view of an interactive pen;

FIG. 2 is a top, rear, right-side perspective view thereof;

FIG. 3 is front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM The ornamental design for an interactive pen, as shown and described. 